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EN 1.4313 Stainless Steel vs. EN 1.8509 Steel

Both EN 1.4313 stainless steel and EN 1.8509 steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4313 stainless steel and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 12 to 17
11
Fatigue Strength, MPa 340 to 510
580
Impact Strength: V-Notched Charpy, J 55 to 70
29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460 to 600
680
Tensile Strength: Ultimate (UTS), MPa 750 to 1000
1130
Tensile Strength: Yield (Proof), MPa 580 to 910
940

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 780
440
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.6
Embodied Energy, MJ/kg 34
22
Embodied Water, L/kg 110
65

Common Calculations

PREN (Pitting Resistance) 15
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
120
Resilience: Unit (Modulus of Resilience), kJ/m3 870 to 2100
2340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 36
40
Strength to Weight: Bending, points 23 to 28
31
Thermal Diffusivity, mm2/s 6.7
10
Thermal Shock Resistance, points 27 to 36
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.050
0.38 to 0.45
Chromium (Cr), % 12 to 14
1.5 to 1.8
Iron (Fe), % 78.5 to 84.2
95.5 to 97.1
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 0.3 to 0.7
0.2 to 0.35
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035